Decay parameters and the axial-vector form factors for strangeness changing as well as strangeness conserving semileptonic decays of the hyperons

Abstract

We have calculated the axial-vector form factors for the hyperon semileptonic decays Bi → Bflv̄ in the chiral constituent quark model (χCQM). The decays considered here are the strangeness changing as well as strangeness conserving semileptonic decays of the hyperons. The conventional dipole form of parametrization has been used to analyse the Q2 dependence of the axialvector form factors (giBiBf (Q2)) as well their decay constants.